Drawing and camera table



UNITED STATES .PATENT OFFICE.

i J. B. STAOKPOLE, OF BOSTON, MASSACHUSETTS.

DRAWING AND CAMERA TABLE.

Specification forming part of Letters Patent No. 40,647, dated November17, 1863.

.To @ZZ whom it may concern:

Be itknown that I, J. B. S'IACKPOLE, of

' Boston, county of Suffolk, and State of Massachusetts, have invented anew and Improved Camera and Draftsmans Table.; and I do hereby declarethat the following is a full and exact description thereof, referencebeing` had to the accompanying drawings, and to the letters ofreferencemarked thereon.

The nature of my invention consists in so arranging the top of a tablethat it can be easily raised-or lowered at will, and at the same timeset at any desired angle with the horizon.

To enable `others skilled in the art to make and use my invention, Iwill proceed to de scribe its construction and operation.

Drawing No. lis a perspective view; No. 2, side elevation; No. 3,longitudinal section through center of table.

Similar letters referto similar parts.

A A A is the body of the table; B, stationaryr top of table; (l, foldingboard, connected with B by the hinges c c, and with movable top Dbyhinges d d,- D, adjustable top of table; I I, adjusting-standards, (bywhich D is raised and lowered,) connected with barrel 1c by the cords t'i; Q, crank by means of which the barrel k and the standards l I areoperated; K, ratchet-Wheel, connected with barrel lc; Q, pawl forholding the ratchet-wheel K; M, lever for raising the pawl; J,adjusting-standard, (by which the fold O, and thus D, is raised andlowered,) connected with the barrel l by the cordj; R, crank by means ofwhich the barrel l and the standard J are operated; L, ratchet-wheel,connected with the barrel l; N, lever for raising the pawl; P, pawl forholding the ratchet-wheel L; H, cross-piece connecting legs of table andgiving support to boxes F F, in which the standards I I traverse; G,cross-piece connecting legs of table and giving support to box E, in

which I traverses.

Instead ofthe barrel and cord, as described above,theadjusting-standards may be operated by ratchet and pinion, in which casethe standards would require a ratchet-piece attached to them for thatpurpose.

What I claim as my invention, and desire to secure by Letters Patent,is-

`The combination ofthe adjusting-standards J I I (operated either bymeans of the barrel and cord or by ratchet and pinion) With the doublefolding boards D and C, substantially as described, and for the purposeherein set forth.

.'I. B. sTAcKPoLE.

Witnesses:

WILLIAM EDsoN, WILLIAM H. LEMON.

